TY  - BOOK
AU  - Yanda,Pius Zebhe
TI  - Soil erosion as a major contributing factor to the degradation of arable land in Kondoa district, Central Tanzania: : the case of Mwisanga catchment area
AV  - IRA S623.T3Y3 
PY  - 1991///
CY  - Stockholm
PB  - Stockholm University
KW  - Soil erosion
KW  - Tanzania
KW  - Kondoa
ER  -